MAR 18, 2019
CPT Code for XEN-EX
Question: I’ve read that there is a difference in billing for XEN EX than the traditional placement of XEN 45 that is placed ab interno. What CPT code do we submit?
Answer: XEN 45 is submitted with Category III code 0449T Insertion of anterior segment aqueous drainage device, without extraocular reservoir, internal approach into the subconjunctival space; initial device.
The technique referred to as the XEN-EX is involves going the opposite direction and inserting the device through the conjunctiva first, then through the sclera and then through the angle into the anterior chamber. Placement of a XEN tube via an external approach (XEN EX) is well-described by CPT code 66183 Insertion of anterior segment aqueous drainage device, without extraocular reservoir, external approach. More information can be found at aao.org/MIGS
Learn more about MIGs in the Glaucoma module